Welcome to the forum!
Please do make your next post your Introduction here, which we need per the forum rules and see our posting guidelines in the FAQ.
Points to cover:
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Do you have any practical experience in magick?
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If so, what exactly do you practice and how long have you practiced?
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Do you follow any specific system or tradition?
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What are your areas of interest?
Here is a getting started with magick guide. You’ll want to get your spiritual hygiene sorted out, and start work on developing your astral senses, then when you can know you have a decent chance at avoiding impostors and parasites then try the evocation guides we have on here.
The “spiritual hygine” has some ideas on how to do that. You could also just tell her to leave and not come back.
Personally, if I’m driving entities away the last thing I want to do is being yet more into the mix, as that introduces risk of yet more parasites and confusion, but that’s just me, I’ve very confident in my ability to banish based on the strength of my own power and authority over people trespassing on my spiritual territory. It’s easier to keep it simple and handle it face to face, one on one.